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sandeshdsandeshd 

Controlling picklist fields in a vf page

Hi,

 

I have two picklist fields and the value of one should depend on the other. I cannot use dependent picklists as I get the values into the picklist through some logic in controller class.

 

I am using selectOptions for dispalying the picklist values. I tried using actionSuppport , onchange functionality to change the values but wasnt successful. 

 

Please let me know how can I achieve this. 

 

Thanks.

Prafull G.Prafull G.

Can you post the code?
sandeshdsandeshd

<apex:pageblocksectionitem id="pageItemMod">
<apex:outputtext >Mods</apex:outputtext>
<apex:selectList id="mod2" size="1" value="{!modSelected}" multiselect="false">
<apex:selectOptions value="{!mods}"/>
<apex:actionSupport status="status" event="onchange" reRender="mdesc" action="{!getDescriptionList}"/>
</apex:selectList>
</apex:pageblocksectionitem>

 

 

 

<apex:pageblocksectionitem id="mdesc" >
<apex:outputtext >Description</apex:outputtext>
<apex:selectList size="1" value="{!Description}" multiselect="false">
<apex:selectOptions id="mdescription" value="{!mountDescList}"/>
</apex:selectList>
</apex:pageblocksectionitem>

 

 

 

controller:

 

------------------

 

 

public PageReference getDescriptionList()
{


Schema.Describefieldresult result = Schema.sObjectType.Quote.fields.Description__c;
result = result.getSObjectField().getDescribe();
System.debug(Logginglevel.error+'result.getPicklistValues() #### ' + result.getPicklistValues());
for(Schema.picklistentry f : result.getPicklistValues())
{
if(f.getValue() == 'SM' && (modSelected == 'abc' || Quote.System_Model__c == 'abc'))
continue;

mountDescList.add(new SelectOption(f.getValue(),f.getValue()) );

 }

return null;


}

 

 
Shiv ShankarShiv Shankar

// My First Question why you are returning PageReference here.
//You did not put any filter logic for your dependent picklist

public getDescriptionList()
{

// Remove the below commented code because it's supplying same picklist values to your VF Page.

/* Schema.Describefieldresult result = Schema.sObjectType.Quote.fields.Description__c;
result = result.getSObjectField().getDescribe();
System.debug(Logginglevel.error+'result.getPicklistValues() #### ' + result.getPicklistValues());
for(Schema.picklistentry f : result.getPicklistValues())
{
if(f.getValue() == 'SM' && (modSelected == 'abc' || Quote.System_Model__c == 'abc'))
continue;

mountDescList.add(new SelectOption(f.getValue(),f.getValue()) );

} */

// Write you filteration critaria code here, add result in to mountDescList list.
// and you should put your code to getter metod of dependent piclist
}
Prafull G.Prafull G.

public void getDescriptionList() 

{

Schema.Describefieldresult result = Schema.sObjectType.Quote.fields.Description__c;
result = result.getSObjectField().getDescribe();
System.debug(Logginglevel.error+'result.getPicklistValues() #### ' + result.getPicklistValues());
for(Schema.picklistentry f : result.getPicklistValues())
{
if(f.getValue() == 'SM' && (modSelected == 'abc' || Quote.System_Model__c == 'abc'))
break;

mountDescList.add(new SelectOption(f.getValue(),f.getValue()) );

 }

// REMOVE return statement
}

 

There is no point to use PageReference in the above scenario. I guess, You want to show Description picklist values excluding values where modSelected is abc etc. 

 

Let me know if I am pointing you in correct direction.

 

Cheers!
sandeshdsandeshd

If I use a break statement there then it comes out of the for loop right which I dont want. I just want it to skip adding it to the  that particular list mountDescList only if that condition is satisfied.
sandeshdsandeshd

Hi Shiv,

 

ok I dont need toreturn page reference here.

 

My filter logic is 

 

 

if(f.getValue() == 'SM' && (modSelected == 'abc' || Quote.System_Model__c == 'abc'))
continue;

mountDescList.add(new SelectOption(f.getValue(),f.getValue()) );

 

If the above if condition is satisfied then I am not adding it to the list mountdesclist and if it is not satisfied then the value will be added to the list. I just want to omit the value of SM getting added to the list if modselected == 'abc' or if  Quote.System_Model__c == 'abc'

 

Please let me know if you still need any information.
Prafull G.Prafull G.

You can write your If logic as follows:

 

if(!(f.getValue() == 'SM' && (modSelected == 'abc' || Quote.System_Model__c == 'abc'))) {
    mountDescList.add(new SelectOption(f.getValue(),f.getValue()));

}

 

Cheers!
Shiv ShankarShiv Shankar

Hi Sandeshd,

 

modSelected == 'abc' || Quote.System_Model__c == 'abc' // this condition gives sense that if abc is selceted in another picklist and Quote.System_Model__c  is haveing value 'abc' (i think Quote is standard controller for your page.)

 

But i am not able to understood what you are doing in this condition f.getValue() == 'SM'

 

Might be below code helps you

public void getDescriptionList()
{

	Schema.Describefieldresult result = Schema.sObjectType.Quote.fields.Description__c;
	result = result.getSObjectField().getDescribe();
	for(Schema.picklistentry f : result.getPicklistValues())
	{
		if(!(f.getValue() == 'SM' && (modSelected == 'abc' || Quote.System_Model__c == 'abc')))
			mountDescList.add(new SelectOption(f.getValue(),f.getValue()));

	}
}